www.semtech.com/products/ Page 59 ADVANCED COMMUNICATIONS & SENSING DATASHEET SX8723C ZoomingADC fo" />
參數(shù)資料
型號: SX8723CWLTDT
廠商: Semtech
文件頁數(shù): 55/67頁
文件大小: 0K
描述: IC DAS ADC 16BIT I2C/SRL
標準包裝: 1
系列: ZoomingADC™
類型: 數(shù)據(jù)采集系統(tǒng)(DAS)
輸入類型: 差分
輸出類型: 數(shù)字
接口: I²C
安裝類型: 表面貼裝
封裝/外殼: 12-WFDFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 12-MLPD-EP(4x4)
包裝: 標準包裝
其它名稱: SX8723CWLTDTDKR
www.semtech.com/products/
Page 59
ADVANCED COMMUNICATIONS & SENSING
DATASHEET
SX8723C
ZoomingADC for sensing data acquisition
Revision 1.01
January 2011
Semtech
As shown in Figure 52, if lower sampling frequency is used, the current consumption can be lowered by reducing the
bias currents of the PGAs and the ADC with registers IbAmpPga and IbAmpAdc. (In Figure 52, IbAmpPga/Adc = '11', '10',
'00' for fs = 500, 250, 62.5 kHz respectively. The Charge Pump is forced ON for VBATT < 4.2V and forced OFF for VBATT >
4.2V.
Figure 52. Current Consumption vs Temperature and ADC Sampling Frequency
200
300
400
500
600
700
800
900
1'000
1'100
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VBATT [V]
IDD
[u
A
]
62.5Khz, Ibias = 0.25
125Khz, Ibias = 0.25
250Khz, Ibias = 0.5
500Khz, Ibias = 1
Not
Recommended
for
New
Designs
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